Joseph Kostrzewa, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

5601010980 Issued in MI

Practice address

1500 E Sherman Blvd
Muskegon, MI 49444-1849

Phone

(231) 672-2000

NPI assigned

Jan 13, 2022

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Orthopaedic Associates of Muskegon PCGroup PAC ID 7214908045, 113 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Trinity Health Muskegon Hospital Hospital, Muskegon, MI, CCN 230066

Merit-based Incentive Payment System (MIPS)

Final score

97.76 of 100Reported as group

Quality

100

Promoting interoperability

91

Improvement activities

40

Cost

96.35

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jkostrzewa828174@direct.trinity-health.org
• Direct secure messaging: joseph.kostrzewa.1@29636.direct.athenahealth.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Orthopaedic Associates of Muskegon, PC

  • Orthopaedic Surgery Physician
  • Muskegon, MI
  • NPI 1972566594
  Medicare reassignment Care Compare group
• Lake Michigan Emergency Specialists, PLLC

  • Emergency Medicine Physician
  • Muskegon, MI
  • NPI 1124574520
  Medicare reassignment
• Lake Michigan Observation Services PLLC

  • Emergency Medical Services (Emergency Medicine) Physician
  • Muskegon, MI
  • NPI 1518626043
  Medicare reassignment
• Orthopaedic Associates of Muskegon, PC

  • Orthopaedic Surgery Physician
  • Grand Haven, MI
  • NPI 1215650221
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Mercy Health Partners

  dba Mercy Health Muskegon

  • General Acute Care Hospital
  • Muskegon, MI
  • NPI 1831132133
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1642032000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789516800000",
    "number": "1922759703",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1400 MERCY DR STE 100",
            "city": "MUSKEGON",
            "state": "MI",
            "postal_code": "494441833",
            "telephone_number": "231-733-1326",
            "fax_number": "231-733-5212"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E SHERMAN BLVD",
            "city": "MUSKEGON",
            "state": "MI",
            "postal_code": "494441849",
            "telephone_number": "231-672-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1400 Mercy Dr Ste 100",
            "address_purpose": "LOCATION",
            "city": "Muskegon",
            "state": "MI",
            "postal_code": "494441833",
            "country_code": "US",
            "telephone_number": "231-733-1326",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOSTRZEWA",
        "first_name": "JOSEPH",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-01-13",
        "last_updated": "2026-09-16",
        "certification_date": "2026-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MI",
            "license": "5601010980",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Breanne Kortman, LLMSW
• Kristian Joy Kortman
• Mackenzie Kortman
• Barbara J Koski, RN
• Amanda Jane Kosten, LLMSW
• Sandra Kotecki, LBSW, QIDP
• Jessica Lynn Kowalkowski, MA
• Maryanne Louise Kowalski, LMSW
• Conrad Kozlowski, MD
• Jordain G Kraai, PHARM.D

• Physician Assistant in Muskegon, MI
• Providers in Muskegon, MI by specialty
• Physician Assistant in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.